Question 1162929
z < (100-142)/28 which is -1.50
probability 0.0668

z is between -47/28=-1.68 and -32/28=-1.14
probability is 0.0807

z=-0.2533, and x is -0.2533=(x-mean)/sd
or -7.094=x-mean
pr x=134.906

z=0.842
do same way
23.576=x-mean
x=165.576